   * {
       /* 不清除盒子的margin，默认还有8px */
       box-sizing: border-box
   }
   
   body {
       font-family: Verdana, sans-serif;
   }
   
   .mySlides {
       /* 先让他们都隐藏起来 */
       display: none
	   height:300px;
	   display:block;
	   width:570px;
	   margin-right:0px;
	   margin-top: 50px;
	   margin-bottom: 10px;
	   background-repeat: no-repeat;
	   background-position: right top;
	   z-index:2;
	   overflow:hidden;
   }
   
   
   /* 幻灯片容器 */
   
   .slideshow-container {
       max-width: 1000px;
       position: relative;
       margin: auto;
   }
   
   
   /* 下一张 & 上一张 按钮 */
   
   .prev,
   .next {
       cursor: pointer;
       position: absolute;
       top: 50%;
       width: auto;
       /* 为了使按钮居中 */
       margin-top: -22px;
       padding: 16px;
       color: white;
       font-weight: bold;
       font-size: 18px;
       transition: 0.6s ease;
       border-radius: 0 3px 3px 0;
   }
   
   
   /* 定位 "下一张" 按钮靠右 */
   
   .next {
       right: 0;
       border-radius: 3px 0 0 3px;
   }
   
   .prev:hover,
   .next:hover {
       background-color: rgba(0, 0, 0, 0.8);
   }
   
   
   /* 标题设置属性 */
   
   .text {
       color: #f2f2f2;
       font-size: 15px;
       padding: 8px 12px;
       position: absolute;
       bottom: 8px;
       width: 100%;
       text-align: center;
   }
   
   
   /* 数字 (1/3 等) */
   
   .numbertext {
       color: #f2f2f2;
       font-size: 12px;
       padding: 8px 12px;
       position: absolute;
       top: 0;
   }
   
   
   /* 底部小原点 */
   
   .dot {
       cursor: pointer;
       height: 13px;
       width: 13px;
       margin: 0 2px;
       background-color: #bbb;
       border-radius: 50%;
       display: inline-block;
       transition: background-color 0.6s ease;
   }
   
   .active,
   .dot:hover {
       background-color: #717171;
   }
   
   
   /* 淡出动画 */
   
   .fade {
       -webkit-animation-name: fade;
       -webkit-animation-duration: 1s;
       animation-name: fade;
       animation-duration: 1s;
   }
   
   @-webkit-keyframes fade {
       from {
           opacity: .6
       }
       to {
           opacity: 1
       }
   }
   
   @keyframes fade {
       from {
           opacity: .6
       }
       to {
           opacity: 1
       }
   }
   
